Hi again! Thanks for asking. I have tendinitis, on both hands, but the left more than the right because of my constant use of keyboard shortcuts. The inflammation touched a nerve in my case too, which was quite painful 😅 I've been using a wristband/splint thing to take some pressure off the thumb, I was also prescribed some medication, and it's all helped a lot and I'm almost back to normal now. It flares up again if I work for too long, but as long as I'm careful and use the splint when I have to move stuff around, etc. (to avoid moving the thumb too much), I'm fine!

As for the cause, for a long time, I used a keyboard that was too big and didn't fit properly on the tray, so my hand posture wasn't optimal. This year I've also been working waaay too many hours without taking proper breaks. I've fixed those issues now and I'm taking better care of my hands. I'm glad that you fixed your setup as well. Working long hours in front of the computer is tough!

I hope your treatment is effective and you recover soon as well! My best wishes to you and take care.

oh dear, wishing you a swift recovery then!!! :( 

Ive had hand issues too but thankfully I wasn’t in a situation where I couldn’t just stop/slow the activity causing it so it never grew into anything serious, I got concerned when it started hurting consistently and dropped the game that was making it way worse + got my girlfriend to help when it hurt too much on the stuff I didn’t stop hahaha ^^;; 

hopefully treatment will help you if rest wasn’t enough, treat yourself kindly too

That’s awesome news. Once you know what the problem is, everything is a lot easier. Hope the treatment works wonders !